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Which explains a process where a precipitate is formed?
1. Propane gas combusts to form CO2 and H2O.
2. A solution of H2SO4 mixes with a solution of NaOH to produce water and Na2SO4.
3. A solution of HCl mixes with a solution of Ca (OH)2 to produce H2O and CaCl2.
4. A solution of AgNO3 is added to a solution of CaCl2 to produce solid AgCl and a solution of CaNO3.
The moon is 1.5 x 108 km from the sun’s center and 3.9 x 105 km from Earth’s center. If the masses of the moon, Earth, and the sun are 7.3 x 1022 kg, 6.0 x 1024 kg, and 2.0 x 1030 kg, respectively, discover the ratio of the gravitational forces exert..
Water has a mass per mole of 18 g/mol,, and each water molecule has 10 electrons. what is the net charge of all these electrons
An electron is suspended at a distance of 1.36 cm above a uniform line of charge. What is the linear charge density of the line of charge
The particles in the figure below (m1 = 1.8 kg and m2 = 3.5 kg) undergo an elastic collision in one dimension. Find the velocities of the two particles after the collision
Consider a uniformly solid hemisphere of radius R and mass M. Determine the center of mass. Determine the principal axes and principal moments of inertia.
A microscope with an 6.5-mm-focal-length objective has a tube length of 14.0cm. how far should the objective lens be from the specimen
a 0.145-kg baseball pitched horizontally at 39 ms strikes a bat and is popped straight up to a height of 41 m. if the
While running in a cross country meet, a member of women team of SJU dissipates about 0.35 Joule of mechanical energy per step per kilogram of her body mass. determine what is her mass
A bird is flying directly toward a stationary bird-watcher and emits a frequency of 1200 Hz. What is the speed of the bird
For a capacitor in and ac circuit, how much energy is stored in the capacitor at the instant when current is zero?
A 1530-kg car is traveling with a speed of15.0 m/s. What is the magnitude of the horizontal net force that isrequired to bring the car to a halt in a distance of 41.0 m?
a marble is thrown horizontally with a speed of 12.3 ms from the top of a building. when it strikes the ground the
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